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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using XenCenterLib;

namespace XenAdmin.Controls.DataGridViewEx
{
    /// <summary>
    /// A class implementation to do sorting of CollapsingPoolHostDataGridViewRow derived types based on the input column index and direction
    /// </summary>
    public class CollapsingPoolHostRowSorter<T> : CollapsingPoolHostDataGridViewRowStableSorter<T> where T : CollapsingPoolHostDataGridViewRow
    {
        private int columnClicked;

        public CollapsingPoolHostRowSorter(ListSortDirection direction, int columnClicked)
            : base(direction)
        {
            this.columnClicked = columnClicked;

            // In case of same string, default sorting should be still in order under Descending direction
            StableSorter = new CollapsingPoolHostDataGridViewRowDefaultSorter(Direction);
        }

        protected override int SortRowByColumnDetails(T leftSide, T rightSide)
        {
            if (leftSide.IsPoolOrStandaloneHost && !rightSide.IsPoolOrStandaloneHost)
                return -1;

            if (!leftSide.IsPoolOrStandaloneHost && rightSide.IsPoolOrStandaloneHost)
                return 1;

            if ((leftSide.IsPoolOrStandaloneHost && rightSide.IsPoolOrStandaloneHost) ||
                (!leftSide.IsPoolOrStandaloneHost && !rightSide.IsPoolOrStandaloneHost))
            {
                return StringUtility.NaturalCompare(leftSide.Cells[columnClicked].Value.ToString(),
                    rightSide.Cells[columnClicked].Value.ToString());
            }

            return 0;
        }
    }
}
